50 entries under intensely topic. ×

11
fast(adjective, adverb, fiercely, quickly)
6
keenly(adverb, fast, severely, seriously)
6
vigorously(adverb, fast, seriously, fiercely)
4
energetically(adverb, fast, seriously, fiercely)
4
sharply(adverb, fast, severely, seriously)
4
vivaciously(adverb, fast, seriously, fiercely)
3
actively(adverb, fast, sprightly, seriously)
3
spiritedly(adverb, fast, seriously, fiercely)
2
animatedly(adverb, fast, seriously, fiercely)
2
earnestly(adverb, fast, seriously, fiercely)
2
rigorously(adverb, fast, severely, seriously)
2
seriously(adverb, fast, fiercely, vigorously)
2
severely(adverb, fast, severely, fiercely)
2
urgently(adverb, fast, sprightly, seriously)
1
angrily(adverb, fast, sprightly, seriously)
1
boisterously(adverb, fast, sprightly, seriously)
1
brutally(adverb, fast, sprightly, seriously)
1
cruelly(adverb, fast, sprightly, seriously)
1
ferociously(adverb, fast, sprightly, severely)
1
fiercely(adverb, fast, sprightly, seriously)
<123>
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APASmart Define. (2015). briskly thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/briskly/thesaurus/synonyms
ChicagoSmart Define. 2015. "briskly thesaurus" https://smartdefine.org/briskly/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, briskly thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/briskly/thesaurus/synonyms>.
MLASmart Define. "briskly thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/briskly/thesaurus/synonyms>